Key leadership slots on the organization chart for the nascent office of the undersecretary of acquisition and sustainment (A&S) are starting to fill up, after nominees for two senior positions were reported out of the Senate Armed Services Committee this week — Alan Shaffer for A&S deputy undersecretary and Robert McMahon for assistant secretary of defense (ASD) for sustainment. Neither candidate is expected to face any opposition when the Senate votes on their nominations, but it is unclear how soon the chamber will take up the matter, reports Defense News. A&S was created after the Pentagon’s acquisition, technology and logistics office split into two organizations almost eight months ago.